PEO-LiN(SO2CF2CF3)2 polymer electrolytes -: I.: XRD, DSC, and ionic conductivity characterization

This paper describes the preparation and characterization of poly(ethylene oxide) (PEO)-lithium bis(perfluoroethylenesulfonyl)imide (LiBETI), LiN(SO2CF2CF3)(2) polymer electrolytes The structural properties of P(EO)(n)LiBETI electrolyte tapes, investigated using X-ray diffraction (XRD) and differential scanning calorimetry (DSC), are correlated with their ionic conductivities. PEO-LiBETI complexes were found to have very high ionic conductivities due to their amorphous structure. (C) 2001 The Electrochemical Society.